1. Coordinate Plane
SOL A.7

2. Anticipatory Set
When writing an ordered pair, how can you remember which coordinate comes first?

3. Vocabulary
Define the following words: Relation Quadrant

4. Vocabulary (continued)
Relation – a set of ordered pairs
A relation can be expressed as a set, table, map or graph
Example: (1, 2), (-2, -4), (0, 3)
Set
{(1, 2), (-2, -4), (0, 3)}
Table
x y
1 2
0 3
Map
Graph x -2 1 y -4 2 3

5. Vocabulary (continued)
Quadrant – the four regions in to which the x and y-axes separate the coordinate plane y II I x
III IV

6. Teachable Notes Foldable II I III IV The Coordinate Plane Step 2

7. Teachable Notes Foldable I II III IV ( - , +) (+, +) ( - , - )
( + , - )

8. Student Examples
Create a table, map, and graph for the following relation. (3, 7), (-2, 4), (3, 1), (-2, 1) x y
x y 1 3 -2 7 4 1